mskanji.c revision 142654
1155852Sgallatin/* 2155852Sgallatin * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved. 3155852Sgallatin * 4155852Sgallatin * ja_JP.SJIS locale table for BSD4.4/rune 5155852Sgallatin * version 1.0 6155852Sgallatin * (C) Sin'ichiro MIYATANI / Phase One, Inc 7155852Sgallatin * May 12, 1995 8155852Sgallatin * 9155852Sgallatin * Redistribution and use in source and binary forms, with or without 10155852Sgallatin * modification, are permitted provided that the following conditions 11155852Sgallatin * are met: 12155852Sgallatin * 1. Redistributions of source code must retain the above copyright 13155852Sgallatin * notice, this list of conditions and the following disclaimer. 14155852Sgallatin * 2. Redistributions in binary form must reproduce the above copyright 15155852Sgallatin * notice, this list of conditions and the following disclaimer in the 16155852Sgallatin * documentation and/or other materials provided with the distribution. 17155852Sgallatin * 3. All advertising materials mentioning features or use of this software 18155852Sgallatin * must display the following acknowledgement: 19155852Sgallatin * This product includes software developed by Phase One, Inc. 20155852Sgallatin * 4. The name of Phase One, Inc. may be used to endorse or promote products 21155852Sgallatin * derived from this software without specific prior written permission. 22155852Sgallatin * 23155852Sgallatin * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24155852Sgallatin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25155852Sgallatin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26155852Sgallatin * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27155852Sgallatin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28155852Sgallatin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29155852Sgallatin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30155852Sgallatin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31155852Sgallatin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32155852Sgallatin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33155852Sgallatin * SUCH DAMAGE. 34155852Sgallatin */ 35155852Sgallatin 36159571Sgallatin#if defined(LIBC_SCCS) && !defined(lint) 37155852Sgallatinstatic char sccsid[] = "@(#)mskanji.c 1.0 (Phase One) 5/5/95"; 38159571Sgallatin#endif /* LIBC_SCCS and not lint */ 39159571Sgallatin#include <sys/cdefs.h> 40159571Sgallatin__FBSDID("$FreeBSD: head/lib/libc/locale/mskanji.c 142654 2005-02-27 15:11:09Z phantom $"); 41159571Sgallatin 42159571Sgallatin#include <sys/types.h> 43155852Sgallatin#include <errno.h> 44159571Sgallatin#include <runetype.h> 45159571Sgallatin#include <stdlib.h> 46162322Sgallatin#include <string.h> 47162322Sgallatin#include <wchar.h> 48155852Sgallatin#include "mblocal.h" 49155852Sgallatin 50155852Sgallatinstatic size_t _MSKanji_mbrtowc(wchar_t * __restrict, const char * __restrict, 51155852Sgallatin size_t, mbstate_t * __restrict); 52155852Sgallatinstatic int _MSKanji_mbsinit(const mbstate_t *); 53155852Sgallatinstatic size_t _MSKanji_wcrtomb(char * __restrict, wchar_t, 54159571Sgallatin mbstate_t * __restrict); 55155852Sgallatin 56155852Sgallatintypedef struct { 57159612Sgallatin wchar_t ch; 58159612Sgallatin} _MSKanjiState; 59159612Sgallatin 60159612Sgallatinint 61159612Sgallatin_MSKanji_init(_RuneLocale *rl) 62159612Sgallatin{ 63155852Sgallatin 64155852Sgallatin __mbrtowc = _MSKanji_mbrtowc; 65155852Sgallatin __wcrtomb = _MSKanji_wcrtomb; 66155852Sgallatin __mbsinit = _MSKanji_mbsinit; 67155852Sgallatin _CurrentRuneLocale = rl; 68155852Sgallatin __mb_cur_max = 2; 69159571Sgallatin return (0); 70155852Sgallatin} 71159612Sgallatin 72155852Sgallatinstatic int 73155852Sgallatin_MSKanji_mbsinit(const mbstate_t *ps) 74155852Sgallatin{ 75155852Sgallatin 76159612Sgallatin return (ps == NULL || ((const _MSKanjiState *)ps)->ch == 0); 77159612Sgallatin} 78159612Sgallatin 79159612Sgallatinstatic size_t 80159612Sgallatin_MSKanji_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n, 81159612Sgallatin mbstate_t * __restrict ps) 82155852Sgallatin{ 83155852Sgallatin _MSKanjiState *ms; 84155852Sgallatin wchar_t wc; 85155852Sgallatin 86155852Sgallatin ms = (_MSKanjiState *)ps; 87159612Sgallatin 88155852Sgallatin if ((ms->ch & ~0xFF) != 0) { 89155852Sgallatin /* Bad conversion state. */ 90155852Sgallatin errno = EINVAL; 91155852Sgallatin return ((size_t)-1); 92155852Sgallatin } 93159571Sgallatin 94155852Sgallatin if (s == NULL) { 95155852Sgallatin s = ""; 96155852Sgallatin n = 1; 97155852Sgallatin pwc = NULL; 98155852Sgallatin } 99155852Sgallatin 100155852Sgallatin if (n == 0) 101162322Sgallatin /* Incomplete multibyte sequence */ 102159612Sgallatin return ((size_t)-2); 103155852Sgallatin 104155852Sgallatin if (ms->ch != 0) { 105155852Sgallatin if (*s == '\0') { 106155852Sgallatin errno = EILSEQ; 107159612Sgallatin return ((size_t)-1); 108155852Sgallatin } 109162322Sgallatin wc = (ms->ch << 8) | (*s & 0xFF); 110159571Sgallatin if (pwc != NULL) 111155852Sgallatin *pwc = wc; 112155852Sgallatin ms->ch = 0; 113155852Sgallatin return (1); 114155852Sgallatin } 115155852Sgallatin wc = *s++ & 0xff; 116155852Sgallatin if ((wc > 0x80 && wc < 0xa0) || (wc >= 0xe0 && wc < 0xfd)) { 117155852Sgallatin if (n < 2) { 118159571Sgallatin /* Incomplete multibyte sequence */ 119159571Sgallatin ms->ch = wc; 120159571Sgallatin return ((size_t)-2); 121159612Sgallatin } 122159612Sgallatin if (*s == '\0') { 123155852Sgallatin errno = EILSEQ; 124155852Sgallatin return ((size_t)-1); 125155852Sgallatin } 126159612Sgallatin wc = (wc << 8) | (*s++ & 0xff); 127155852Sgallatin if (pwc != NULL) 128155852Sgallatin *pwc = wc; 129159571Sgallatin return (2); 130159571Sgallatin } else { 131159571Sgallatin if (pwc != NULL) 132155852Sgallatin *pwc = wc; 133155852Sgallatin return (wc == L'\0' ? 0 : 1); 134155852Sgallatin } 135155852Sgallatin} 136155852Sgallatin 137159612Sgallatinstatic size_t 138155852Sgallatin_MSKanji_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps) 139155852Sgallatin{ 140155852Sgallatin _MSKanjiState *ms; 141155852Sgallatin int len, i; 142155852Sgallatin 143155852Sgallatin ms = (_MSKanjiState *)ps; 144155852Sgallatin 145155852Sgallatin if (ms->ch != 0) { 146155852Sgallatin errno = EINVAL; 147155852Sgallatin return ((size_t)-1); 148155852Sgallatin } 149155852Sgallatin 150155852Sgallatin if (s == NULL) 151159571Sgallatin /* Reset to initial shift state (no-op) */ 152155852Sgallatin return (1); 153155852Sgallatin len = (wc > 0x100) ? 2 : 1; 154155852Sgallatin for (i = len; i-- > 0; ) 155159612Sgallatin *s++ = wc >> (i << 3); 156159612Sgallatin return (len); 157159612Sgallatin} 158159612Sgallatin